Question

If (-2, 5) is a solution of 2x + my = 11, then the value of ‘m’ is a) -2 b) 2

c) 3 d) -3​

Answer 1

© 3

Step-by-step explanation:

If (-2,5) is the solution of the following equation:

Therefore putting the values of x and y respectively in the equation:

2(-2) + m(5) = 11

-4 +5m = 11

5m = 11+4

5m = 15

m = 15/5

m = 3

Hence the value of m is 3.

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Answer 2

x= -2 , y= 5

2×-2 +m×5=11

-4 +5m=11

5m=11+4

5m = 15

m=15÷5

m=3